One of my own designs
This is a revision of the orignal quake 1 map

I might post the design doc and an image of the original design

Download: Ariochs Castle

Darkplaces / Maphack engine will run this best - some effects / graphics may not display with other engines

For maximum effect -
Archon 1.2 beta : Chaos Mod: the Archons 1.2 beta
Painkeep 3.0 : PainKeep 3.0 rc1

Maphack engine in this: Quake Hack with Maphack engine

Unzip any or all of those with the castle in a Quake (one) directory, follow launch instructions in the txt files